Transcription of National Geologic Map Database
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A 37 Sedimentary-rock lithologic patterns37 LITHOLOGIC PATTERNS[Lithologic patterns are usually reserved for use on stratigraphic columns, sections, or charts] ! " # $ #*For more information, see general guidelines on pages A-i to orconglomerate(1st option)602 Gravel orconglomerate(2nd option)603 Crossbedded gravelor conglomerate605 Breccia (1st option)606 Breccia (2nd option)607 Massive sand orsandstone608 Bedded sand orsandstone609 Crossbedded sandor sandstone(1st option)610 Crossbedded sandor sandstone(2nd option)611 Ripple-bedded sandor sandstone612 Argillaceous orshaly sandstone613 Calcareoussandstone614 Dolomiticsandstone616 Silt, siltstone,or shaly silt617 Calcareoussiltstone618 Dolomiticsiltstone619 Sandy or siltyshale620 Clay or clayshale621 Cherty shale622 Dolomitic shale623 Calcareous shaleor marl624 Carbonaceousshale625 Oil shale626 Chalk627 Limestone628 Clasticlimestone629 Fossiliferous clasticlimestone630 Nodular or irregularlybedded limestone631 Limestone, irregular(burrow?)
A–37–3 37.2—Metamorphic-rock, igneous-rock, and vein-matter lithologic patterns 37—LITHOLOGIC PATTERNS (continued) [Lithologic patterns are usually reserved for use on stratigraphic columns, sections, or charts]
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